Mining- machine



E. C. MORGAN.

MINING MACHINE.

APPLICATION FILED JUNE 27, I910. RENEWED .*-1AY18.1916.

1,424, 1 1 3.. I Patented J uly 25, 1922.

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E. C. MORGAN;

MINING MACHINE. APPLICATION man JUNE 21. mo.- RENEWED MAY 1a. 1916.

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E. C. MORGAN.

MINING MACHINE.

APPLICATION FILED JUNE 2?. 1910. RENEWED MAY 18,1916.

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h z'tnesses.

E. C. MORGAN. MINING MACHINE.

APPLICATION FILED JUNE 27, IQIO. RENEWED MAY 18, 1916.

Patented July 25, 1922.

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I DZVzlfnesse-s I E. C. MORGAN MINING MACHINE.APPLICATIONIHLEDJUNEZT,1910. RENEWED MAY 18,1916.

Patented July 25, 19 22.

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E. C. MORGAN.

Patented July 25, 1922.

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MINING MACHINE. APPLICATION FILED JUNE 27. 1910. RENEWED MAY 18,1916.1,424,113.

Patented July 25, 1922.

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Inventor- W77 Attorney ll z'tnesses @FFIQE.

EDll/IUND' IIIORGAN, F MORGAN PARK, ILLINOIS.

MINING IvIACHINE.

Specification of Letters Patent.

Patented July 25, 1922.

Application filed June 27', 1916, Serial No. 569,173. Renewed May 18,1916. Serial No. 98,438.

To all who-m it may concern:

Be it known that l, l lmaorm c. hicnoax, a citizen of the United States,residing at Morgan Park, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Mining lilachines, ofwhich the following is a specification.

This invention relates to minin' n1achinery and has for its primaryobject to provide an improved construction, combination and arrangementof parts in a mining machine. r

One of the objects of the present invention is to provide an improvedmining machine constructed in sections.

Another object of my invention is the provision of means for producingtransverse lrerfs in amine wall while an under kerf is being cut, andintermittently moving crosscutting mechanism to new positions while theundercutting mechanism continues in operation.

Another object of the invention is to provide cross-cutting mechanismabove an undercut in a mine wall and combining there with dislodging andloading apparatus.

A further object of the invention is to provide in a machine adapted tomove su stantially .parallelto a coal face, the combination of anundercutting means and a breaking down device adapted to attack the coalwall located behind the undercutting means and in a plane transverse andsubstantially perpendicular to the main face of the coal.

Other and further objects will appear in the specification and be morespecifically pointed out in the appended claims, reference being had tothe accompanying draw-- iugs which exemplify the invention and in which-Figure 1 is a plan view of ti e front end of a mining machineconstructed in accord ance with the principles of this invention.

Figure 1 is a plan View of the rear end of the same machine.

Figure 2 is a side elevation of the front end of the same machine.

Figure 2 is a side elevation of the rear end of the same machine.

Figure 3 is a front elevation of the same machine. v

Figure 1 is a rear elevation of the ma chine.

Figure 5 is a Section on the line V-V Fig, 1.

Figure 6 is a section on the line VI-Vl Fig 1 Figure "7 is a fragmentarysectional view taken on the line 7-7 of Fig. 1 looking in. the directionof the arrows, a portion of the bracket and of the circular movable pin,and the vertical shaft, being shown in elevation.

Referring more particularly to the drawings, the frame work of themachine comprises a forward slidabl'e base member 1 and a rear slidablebase member 2, said base members being adjustably connected togetherpreferably by a slide and guide connection shown on the drawings as abar 3 mounted within a rearwardly extending portion 4. of the forwardbase member 1. For this purpose the slidable member 2 is provided withlaterally projecting arms 5 upon the outer ends of which are the collarsor sleeves 6 which slidably engage the bar 3. Upon the front end of theforward memher 1, ismount-ed a winding drum 7 pro-' vided with aflexible connection 8 leading to a strut or post 9, which, as shown inFigs. 2 and 3, is imbedded at either end in the upper and lower walls ofthe gallery. Said strut is provided with an adjustable portion 10 whichmaybe rotated by a wrench or lever 11 so as to secure it firmly inposition or to release it from engagement with the roof. The drum 7 iskeyed to a shaft 12 upon which is loosely mounted a spiral gear 13meshing with a spiral worm 1d secured to the endof a drive shaft 15which re ceivcs its motion from a motor 16. The gear 13 hasrigidlymounted thereon, a clutch element 17 with which cooperates aclutch element. 18 splined on theshaft 12. The clutch element 18 isprovidedwith a grooved. collar 19 in which engages a forked lever 20integrally formed with an operating lever 21 provided with a pawl latch22 engaging the segment ratchet 28. By this means the spiral gear 13may, whenever desired, be locked to the shaft 12 so that should themotor 1 6 be running, the drum 7 would be rotated to wind 'the cable 8thereon and thus cause the entire machine to slide over the floor of themine, or should occasion demand it, the base member 1 can be movedforward with the undercutting tool presently to be described, while therear section of the machine remains stationary. The drive shaft 15 haskeyed thereto a spiral worm 2A which meshes with a worm gear for drivingthe undercutting tool head 26. A gear 27 on the end of the drive shaft15 transmits power to a gear 28 keyed to an intermediate shaft 29, saidshaft 29 being extended rearwardly and provided by means of a universalcoupling 30 with a flexible connection to an extensible shaft 31,, theother end of said extensible shaft 31 being con nected by a universaljoint 32 with a short driven shaft 33.

Referring now more especially to Figures 1 and 2*, the shaft 29 isconnected by bevel gears 34 and 35 through the interinedium of anextensible shaft 36, with a cutter shaft 37 upon which is carried arotary crosscutting tool 38. The cross-cutting tool 38, together withthe shaft 37, is journaled within a carriage 39, mounted upon theforward member of the base and which carriage may be traversed towardthe coal by means of a rack l0 rigidly mounted on said carriage 39. Asecond rack 4-1, also rigidly mounted on the carriage 39, serves for(the return movement of the carriage. To effect these movements, avertical spindle Fig. 5 has keyed thereto a worm gear 43 with whichinter-meshes a worm d4: keyed to the shaft 37. Upon the lower end of thespindle 42 is loosely journaled a small pinion 45 provided with a clutchelement 46. A larger spur gear 47 is loosely journaled upon the spindle42 above the pinion 45, while between said pinion and gear is a clutchelement 48 slidably mounted on the spindle 42 but held against turningthereon by means of a spline 49. A shifting lever 50 operably engagingthe clutching element as serves to shift said clutch element into clutchwith either of the gears 45 or 47, the pinion 45 being adapted to impartthe slow inward movement to the carriage 39 while the larger gear d7serves to impart the quick return thereto. The carriage 39 isreciprocally mounted in guides or ways 51 which overhang the shaft 29.

In order to bring down the coal which has been channeled by an undercutand. grooved by a crosscut, a picking device (F l) mounted upon the rearbase member 2 and preferably comprises a picking tool 52 reciprocallymounted within a housing 53 by means of a plunger 54: having a piston 55which is adapted to be acted upon by any suitable elastic fluid in thewell known manner not specifically concerned in the present invention.The housing 53 is provided with trunnions 54 rotatably mounted under thearms of a bearing fork 55 Said bearing fork 55 is in turn pivotallymounted upon an upright or standard 56 (Fig. 2 to oscillate about avertical axis. The pick 52 is thus mounted to have a universal movementand the housing 53 is provided with a handle 57 whereby the direction ofthe picking action may be controlled. After the coal has been broughtdown by the pick 52, gathering mechanism comprising a finger composed ofa horizontal plate 53 and a vertical flange or plate 59 along a portionof one edge of the horizontal plate is adapted to displace the coallaterally by being slidably mounted in a bearing block 60 which ispivotally mounted at 61 in the outer end of an arm 62 rigidly connectedto the rear member 2. A pin 63 projecting from the blade of the finger58 pivotally engages a rotary disk (3-1 keyed to a spindle 65 (see Fig.l) upon which is also keyed a beveled gear 66. A pinion 67 (Fig. 1)meshing with the gear 66 transmits power thereto by means of anextensible shaft 68 which receives its power through a pinion 69 fromthe bevelec gear 70 which in turn meshes with a gear 71 keyed to thedriven shaft 33,hereinbefore referred to. The beveled gear 70 is keyedto a stub shaft 72 upon which is also keyed a sprocket wheel 73 fordriving an endless chain 74, said endless chain being provided withoutwardly projecting arms or flights 75 into the path of movement ofwhich the coal is moved by means of the finger 58. The flight conveyer,comprising the endless chain T l and the projecting flights or arms 75,is operatively mounted within a chute 7G projecting upwardly andrearwardly from the base member 2. A lateral rail or flange 7 7 of thechute 7 6, serves to confine the coal to the chute. In order to adaptthe chute to be readily adjusted in position on the base member 2, saidchute is provided adjacent its lower end (see Fig. 6) with a ball andsocket joint 7 8 and with a vertically adjustable abutment or support 79having a threaded connection with a screw 80 upon which it may be raisedor lowered by means of a hand wheel 81. A pedestal 82 is connected bylink 83 with a loop 84 secured to said chute in such manner as to anchorsaid chute to limit its movement. The inner lower end of said chute isprovided with a projecting scoop portion 85 which is sharpened on itslateral. edge to adapt it to be inserted under the coal which is to beremoved thereover. The projecting scoop portion 85 is shown in Figs. land 6 as constituting a plate adapted to occupy a position at thereceiving end of the conveyer in the plane of the under kerf.

In order to adjust the position of the base member 2 relatively to thebase member 1 and thus adjust the cross-cutting tool 38 relatively tothe undercutting kerf cutter 26, a cable 86 (see Fig. l") is secured toan eye 87 rigidly mounted upon a web 38 on the rearwardly extendingportion of the forward member 1. The cable 36 may be wound upon a drum(see Figs. 1 and by causing .19 said drum to be rotated on a verticalspindle 90 to which is keyed a beveled gear 91 meshing with a pinion 92on the end of a shaft 93, the other end of the shaft 93 being providedwith a second beveled pinion 9a which meshes with the beveled. gear 66,hereinbe fore referred to. A shifting lever 95 (Fig, 1) serves to shifta clutch element 96 which is keyed to the spindle 90, into clutchingengagement with a clutching surface formed in the drum 89.

The forward base member 1 may, if desired, be provided with a verticallyprojecting flange 97 so as to maintain the machine accurately inposition during the cutting operations, by means of a series of posts 98vertically disposed at one side of the machine. The fiange 97 may engagethe posts 98 to guide the mining and loading machine laterally along acoal face and parallel thereto.

lVith this improved construction, it will be apparent that the rotaryundercutting kerf-cutter 26, as shown in Fig. 1, may be continuouslyadvanced along a mine wall during the operation of said kerf-cutter. Inorder to permit the cross-cutting rotary kerfcutter 38, as shown in Fig.l, to operate during the feeding movement of the undercutter along themine wall, and in order to permit the cross-cutting tool to beintermittently advanced during the operation of the undercutting tool,the supporting framework of the entire machine is constructed in secionsadjustable with respect to each other, the rear sectional frame 2 beingslidably mounted on the forward sectional frame 1, as shown in Fig. 1the cross-cutting kerf cutter has a feeding movement substantially atright angles to the normal upright face of the coal wall, and during theoperation of this cross-cutting kerf-cutter the forward sectional frame1 slides in the brackets 5 ol the rear sectional frame. W hen the crosscutter is to be advanced forwardly to a new position, a pull is exertedon the rope 86 by means of the mechanism shown in Fig. 1 to slide therear sectional frame 2 forwardly on the forward sectional frame.

I have described and claimedin a co-pend- .ing divisional application,Serial No. 76,- 910, liled February 8, 1916, for an improvement inloading appaiatus, the specilic construction herein disclosed forgathering the broken down coal by moving it into the path of the flightconveyer. 'lhis gathering mechanism described and claimed in saidonpending application Serial No. 76,910, comprises the finger 58 havingthe uprigl'it blade 59 and parts connected thereto for operating thesame to effect movement of the dislodged coal onto the receiving end ofthe flight conveyer.

In my co-pending application, Serial No. 210,796, filed January 7, 1918,as a renewal of Serial No. 569,168, originally filed June chines, I havedescribed and claimed a mining and loading machine comprising mecha-1910, for an improvement in mining manism for cutting kerfs in a minewall in intersecting planes, a pick machine, a conveyer, and gatheringmechanism for moving material dislodged by the pick machine onto theconveyer, but in that combination a core of material is cut in the minewall by the kerf-cutting mechanism, while in the present application theplane of the vertical kerfcutter intersects the plane of the undercutterwithout cutting such a core and. fur thermore, in Serial No. 210,796 thepick machine acts substantially at right angles to the normal uprightface of the coal wall, whereas, in the present application the pickmachine is adapted to operate on an advancing coal face in verticalplanes sub stantially at right angles to the normal coal. face parallelto which the mining machine is moved during the feed of the undercutter.I therefore wish to claim more broadly in the present application suchcombinations with the intersecting kerf-cutting mechanism as are commonto the two applications, retaining in Serial No. 210,796, claimsdirected to subject-matter disclosed therein and not disclosed in thepresent application, while the claims in Serial No. 76,910 are directedto the gathering mechanism per se and the combination of the gatheringmechanism and dislodging mechanism.

'lVhat I claim is:

1. In a mining machine, the combination with a supporting frame, ofcutting mechanism mounted thereon and movable bodily therewith intopositions to cut horizontal kerfs, an additional supporting frameconnected to said first-named supporting frame in fixed relation theretobut movable relatively'thereto, cutting mechanism mounted onsaidadditional frame and movable bodily therewith into positions to cutuprightkerfs transverse to the coal face, and means for operating saidcutting mechanisms.

2. In a mining machine, the combination with a supporting frame, ofcutting mechanism mounted on said supporting frame in position to cut ahorizontal kerf, an additional supporting frame permanently mounted onsaid first named frame for movement relatively thereto and in fixedrelation to said first named frame, cutting mechanism mounted on saidadditional frame and movable bodily therewith into positions to cuttransversely of the coal face,

andmeans for operating both of said cutting mechanisms from a singlesource of power during the various positions of said additional framerelatively to said first named frame. I

3. In a mining machine, the combination with supporting frameworkcomprising relatively slidable sections, a kerf cutter mounted on onesectionand morable bodily therewith in position to cut a substantiallyhori- Zontal kerf m an upright mine wall, an additional lrerf cuttermounted on the other section in posit-ion to cut an upright kerf in saidupright mine wall, means for driving said kerf cutters, and separatemeans for feeding said kerf cutters.

4-. In a mining machine, the combination with a frame, of kerf cuttingmechanism mounted thereon, means for operating said kerf cuttingmechanism including the feed thereof by movement of said frame, a reciprocable coal-breaking device, means for supporting said coal-breakingdevice on said frame for movement relatively thereto, and means foroperating said device during the operation of said cutting mechanismincluding the feed of the latter.

5. In a coal mining machine, the combination of a forward base memberhaving a rotary cutter operating in a horizontal plane adjacent thefloor of a mine, a rear base member movable toward and away from theforward base member and having a vertically disposed rotary cutteroperating in a plane transverse to that in which the other cutteroperates, a motor mounted on one of t 1e base members, and means foroperatively connecting each cutter to said motor.

6. In a coal mining machine, the combination of a forward base memberhaving a rotary cutter operating in a horizontal plane adjacent thefloor of a mine, a rear base member movable toward and away from theforward base member and having a vertically disposed rotary cutter operaing in a plane transverse to that in which the other cutter operates, amotor mounted on one of the base members, means for operativelyconnecting each cutter to said motor, and means mounted on the forwardbase member and operably connected to said motor for drawing the machineon the floor of the mine.

7. In a coal mining machine, the combination of a forward base memberhaving a rotary cutter operating in a horizontal plane adjacent thefloor of a mine, a rear base member movable toward and away from theforward base member and having a vertically disposed rotary cutteroperating in a plane transverse to that in which the other cutteroperates, a motor mounted on one of the base members, means foroperatively connecting each cutter to said motor, a winding drum mountedon the forward base member, and a releasable clutching mechanism gearedto said motor and winding drum.

8. In a mining machine, the combination with a main frame, of a kerfcutter mounted on said main frame in position to cut a horizontal kerfin an upright mine wall, a supplemental frame movable on said mainframe, an additional kerf cutter mounted on said supplemental frame inposition to cut a kerf in said upright mine Wall above the plane of thehorizontal kerf, means for moving the main frame to effect the feedofsaid first named kerf cutter, means for feeding said additional kerfcutter transversely of the upright mine wall, and mechanism forsimultaneously driving both of said kerf cutters during the respectivefeeds thereof and while said main frame moves along said upright minewall relatively to said supplemental frame.

9. In a mining machine, the combination with a main frame, of a kerfcutter mounted on said main frame for operation in approximately ahorizontal plane, a supplemental frame carried by said main frame, anadditional kerf cutter mounted on said supplemental frame for operationin a substantially vertical plane, means for feeding the said verticalcutter transversely of said supplemental frame, and means for feedingthe main frame forward longitudinally together with the horizontalcutter mounted thereon while said supplemental frame is being heldsubstantially stationary while the vertical cutter operates on the minewall.

10. in a mining machine, the combination with a main frame, of ahorizontal kerf cutter mounted thereon, a supplemental frame movablymounted on said main frame, a vertical kerf cutter mounted on saidsupplemental frame, means for feeding said vertical kerf cuttertransversely of said supplemental frame, mechanism for feeding forwardthe main frame together with the horizontal kerf cutter mounted thereon,and apparatus for moving the supplemental frame relatively to the mainframe to adjust the position of the vertical kerf cutter.

11. In a long wall mining machine, the combination with a main frame, ofan undercutter mounted on said main frame, means for feeding said mainframe together with the under cutter thereon along the mine wall whilesaid under cutter is in operation, a supplementary frame slidablymounted on said main frame, a vertical cross cutter mounted on saidsupplemental frame, means for feeding said cross cutter transversely ofsaid supplemental frame and at substantially right angles to the minewall during the operation of said cross-cutter, means for simultaneouslyoperating said under cutter, and mechanism operable at will to shiftsaid supplemental frame longitudinally relatively to said main frame toadjust the cross cutter to a new forward position for operation againstthe mine wall.

12. In a mining machine, the combination with a main frame, of a cuttermounted on said main frameand operating in asubstantially horizontalplane, means for feeding said main frame forward while said outter is inoperation, a supplemental frame movably mounted on said main frame, anadditional cutter mounted on said supplemental frame for operation in asubstantially vertical plane, means for feeding said vertical cuttertransversely of said supplemental frame while said vertical cutter is inoperation, apparatus for simultaneously operating both the horizontalcutter and the vertical cutter, means for vaiying the position of thesupplemental f lie on said main frame to adjust the position of saidvertical cutter, and means for breaking down the s L duced by saidhorizontal and vertical cutters.

13. In a mining machine, the combination with supporting framework, of akerf cut.- ter mounted on said framework in position to cut a kerfalong'a mine wall in a plane substantially perpendicular thereto, anadditional kerf cutter mounted on said framework in position to cut askerlj' substantially at right angles to the mine wall but inter sectingthe kerf cut by said first-named kerf cutter so as to cut a body ofmaterial adjacent said framew rk in intersecting planes, means foradjusting t 1e position of said transverse kerf cutter on said frameworkrelatively to the other kerf cutter, and a universally mounted pickmachine mounted. on said framework in position to dislodge the said bodyof material bounded by the intersecting ke'rfs produced by said kerfcutters.

. l. a mining machine, the combination with a cutter rotatable in oneplane, of a second cutter rotatable in a plane transverse thereto, meansfor feedingeach of said cutters into an upright mine wall to cut inplanes extending transversely of such uprigl'it mine wall ano each inthe plane of its rotation, and means for adjusting one of said. cuttersrelatively to the other in a direction intersecting the plane of actionof said adjustable cutter.

15. in mining machine, the combination with a cutter rotatable in oneplane, of a secoiu'l cutter rotatable in a plane transverse thereto,means for feeding each of said cutters into an upright mine wall to cutin planes extending;- traosversel y of such upright mine wall and eachin the plane of its rota ion, means for adjusting one ofsaid cuttersrelatively tr the other in a direction intersecting the plane of actionof said adjustalrlc cutter, means for driving one of said cutters, and.means for ooerably connecting the other cutter with the drivingmechanism for the first cutter.

M3. in a mining: machine, the combination with a cutter rotatable inonev plane, of a second cutter rotatable in a plane trans verse thereto,means for feeding; each of said cutters into an upright mine wall tooper ate in planes transversely of such upright mine wall and each inthe plane of its ro tation, means for adjusting one of said cuttersrelatively to the other in a direction in tersecting the plane of actionof said adjustable cutter, means for driving one of said cutters, andmeans for operably connecting the other cutter with the drivingmechanism for the first cutter, said. connecting means being flexibleand extensihie.

17. In a mining machine, the combination with supporting framework, of akerf cutter mountel thereon in position to undercut a wall of coal in anapproximately hori zontal plane, a second cutter mounted on saidframework in position to cut a kerf in a plane transverse to the planeof said firstnamed kerf cutter, said transverse kerl cutter beinginitially out of engagement with the coal wall, means for driving bothof said kerf cutters from the same source of power, means forsimultaneously feeding both of said kerf cutters, and means individualto the said kerf cutters for controlling their feeding movements.

1.8. In a mining machine, the combination with supporting frameworlgof akerf cutter mounted on said framework in. position to undercut a wall ofcoal in an approximately horizontal plane, a second kerf cutter mountedon said framework in position to be initially out of engagement with thecoal,

wall but capable of cutting a kerf in the mine wall in a planetransversely of the plane of the first-named kerf, means for drivingboth of said lcrf cutters from the same source of power, means forfeeding the undercutting kerf cutter, means for feeding the second-namedkerf cutter into the mine. wall transversely of the plane of the kerfproduced by the first-named kerf cutter, means individual to said kerfcutters for controlling the feeding movements thereof, and mechanismcoacting with the feeding mechanism of the second-named kerf cutter foreffecting a quick return of the latter to initial position after such t'ansverse kerf has been cut thereby.

19. In a mining machine, the combination with supporting; framework, ofa cutter mounted on said framework in position to undercut a body ofcoal, a second. cutter mounted on said framework in position to cut sucha body of coal transversely of the plane of the said undercut, saidsecond cutter being" initially out of engagement with the coal, meansfor operating said cutters including: the feed of each, and meansmounted on said framework for moving' the second cutter bodily along theminewall to new positions relatively to the firstcutter and atintervals.

20. In a mining machine, the combination with an undercutting tooloperating adjacent the floor of the mine, of a second cutter operabletransversely to the first said cutter, means for drivi'n said cutters, afeeding mechanism for the second cutter,

means for effecting the operation of the feeding mechanismintermittently, a pick for bringing down the coal cut by said outters,and framework for supporting said pick in fixed relation with saidsecond cutter.

21. In a mining machine, the combination with an undercutting tooloperating adjacent the floor of the mine, of a second cutter operabletransversely to the first said cutter, means for driving said cutters, afeeding mechanism for the second cutter, means for effecting theoperation of the feeding mechanism intermittently, a pick for bringingdown the coal cut by said outters, a support for said pick, a universalconnection between the pick and its support, and framework forsupporting said cutters and said pick in fixed relation to each other.

22. In a mining machine, the combination with a supporting frame, ofkerf cutting mechanism mounted thereon and movable bodily therewith, asupplemental frame con nected to said main frame and movable bodilytherewith, said supplemental frame being guided on said main frame for apredetermined limited movement relatively to said main frame and infixed relation to the latter, additional kerf cutting mechanism mountedon said supplemental frame and movable bodily therewith, said kerfcutting mechanisms being mounted for operation in intersecting planes,means for driving said cutting mechanisms, means for moving said mainframe to effect feeding of said first named cutting mechanism, means forfeeding said additional cutting mechanism rel atively to both of saidframes, means for moving said supplemental frame relatively to said mainframe to adjust the position of said additional cutting mechanism, andmeans mounted on said supplemental frame and movable bodily therewith,said breaking down means being in position to dislodge the material cutby said cutting mechanisms.

23. In a machine of the character described, the combination with aforward base member having an undercutting tool mounted thereon andmeans for feeding said member along a. wall of coal, of a rear basemember, a transverse cutter mounted on the rear member, means forfeeding the last cutter into and ont of the coal wall, a motor operablyconnectedv with each of said outters, feeding mechanism, and means forimparting relative movement to said base members.

24. In a mining machine, the combination with a forward base member, ofa motor mounted thereon, an undercutting tool driven by said motor, arear base member slidably connected with said forward base member, adriven shaft carried by the rear base member and operatively connectedwith saic motor, a cross-cutting tool mounted on the rear base memberand operatively connected to said motor, and a winding drum mounted onthe rear base member and operatively connected to said driven shaft saidwinding drum being provided with a flexible connection secured to theforward base member.

25. In a coal mining machine, the combination with supporting frameworkcomprising base sections movable relatively to each other but having afixed relative relation with the relative movement limited, a cuttingtool mounted on one of said base sections, and movable bodily therewithto cut a horizontal kerf in an upright mine wall, an additional cuttingtool mounted on the other section and movable bodily therewith topositions for cutting upright kerfs in such mine wall, and means mountedon said framework common to both of said cutting tools for operatingthem simultaneously, including the feed thereof,

26. In a coal mining machine, the combination with supporting framework,comprising base sections having limited relative movement andpermanently connected together in fixed relation, a. cutting toolmounted on one section and mov ble bodily therewith, another cuttingtool mounted on the other section and movable bodily therewith, meanscommon to the cutting tools for.

operating them simultaneously in the various relative positions of saidsections to cut kerfs in an upright mine wall, and means individual tothe cutting tool on one section for controlling the feed thereofindepend ently of the feed. of the cutting tool on the other section.

27. In a mining machine, the combination with an under-cutting kerfcutter, of a second cutter disposed in a plane trans verse to the planeof said under-cutting kerf cutter, means for feeding said undercuttingkerf cutter along a mine wall, means for feeding said second kerf cutterinto the mine wall while the said under-cutting kerf cutter is operatingto produce an under cut, and means for advancing said kerf cutter to anew position during the operation of said under cutter.

28. In a mining machine, the combima tion with framework, of two cuttersmounted thereon in predetermined spaced r lation, means for operatingsaid cutters, means individual to said cutters for controlling thefeeding, movements thereof, and means on said framew rk for breakingdown the material bounded by the cuts made by said cutters.

29. In a mining machine, the combination with kerf cutter for making anunder out along a mine wall, of a second kerf cutter for making a cut inthe mine wall-substantially at right angles to the face thereof, meansfor feeding the under cutter along the mine wall, means forsinniltaneously with two feeding the second. kerf cutter into the minewall, and mechanism for effecting intermittent advancement of the secondcutter along the mine wall to new positions.

30. In a mining machine, the combination with supporting frameworkcomprising two sections having limited relative movement and connectedtogether in fixed relation, of an undercutting kerf cutter mounted onthe forward section, means for operating said kerf cutter, a second kerfcutter mounted on the other section of said framework for producing akerf in the mine wall in a plane substantially at right angles to theplane of said undercutting :erf cutter, means for operating said secondkerf cutter to cut a kerf extending above the under-kerf andsubstantially at right angles thereto, means for controlling saidlast-named operating means independently of the operation saidunder-cutting l-Lerf cutter, and means advancing the sectioncarryingsaid second kerf cutter to a new position along the other section whilesaid under-cutting kerf cutter continues in operation.

31, I mining machine, the combination relatively movable interconnectedframes, of an under-cutting kerf cutter on the ward frame, a transversekerf cutter on the rear frame, means for operating said. c itters, meansfor controlling the op erations of said kerf cutters independently ofeach other, means for controlling the ad\ t ice of ;he transverse kerfcutter intermittently to new positions, means on the rear fra forbreaking down the material. above the under cut and back of thetransverse cut, and loading apparatus also mounted on the rear frameandextending to a position adjacent the rear of the transverse cut- Inmining machine, the combination two connected. but relatively movable.fwjnes, of an under cutter on the forward frame, a right angle cutteron the rear fi mo, means for operating said cutters, means forcontrolling sucn operation independently of each other, means foradvancf, 'ihc roa frame relatively to the forward frame to move theright angle cutter to a new i :itiou, and means nioi'zntcd on the rearframe for break! down the material above the under cut and back of theright angle cut.

ln mining machine, the coml'iination with framework comprising tworelatively movable interconnected sections, of an undercutting kerfcutter on the forward section, a-transverse kerf cutter on the rearsection, means for operating said kerf cutters, means for controllingthe transverse cutter independently of the under cutter, means foreffecting the advance of the transverse cutter at will. tointermittently adjust the same to new cutting positions, a

pick machine mounted on the rear section to break down the materialabove the under cut and back of the transverse cut, conveying mechanismon the rear section and extending to a position between said pickmachine and said transverse kerf cutter, and mechanism for automaticallymoving the broken down material into position to be acted on by saidconveying mechanism, said cutters, pick machine and conveying mechanismbeing mounted on said framework to constitute a unitary mining andloading machine.

34. In a machine for undercutting, breaking down and loading coal, thecombination with framework movable along a path substantially parallelto a coal face, of a lowdown laterally projecting horizontal kerf cutteron the framework for undercutting coal to be removed, means for engagingthe frame and causing it to move in a fixed path, a blow-strikingcoal-breaking pick behind said cutter on said framework for breakingdown the coal, and means on said framework for removing the broken downcoal, said breaking down and renaming means performing their respectivefunctions as the said cutter is advanced to form the kerf.

35. In apparatus of the character set forth, the combination of a frameadapted to travel along a coal face, cutter mechanism mounted on saidframe and adapted to cut vertical kerfs in the coal transverse to theface thereof, and an impact breaking device mounted on the frame toswing horizontally for the purpose of effectively attacking the body ofcoal between such kerfs,

- and to move up and down for the purpose of breaking down and loadingcoal, the combi-' nation with supporting framework movable along a pathsubstantially parallel to a coal face, of a low-down laterallyprojecting horizontal kerf cutter mounted on said framework in positionfor undercutting the coal to be removed, means for mov+ ing saidframework in a fired path, a reci n'ocable coal-breaking pick on saidframework behind said cutter for breaking down the coal, and an endlessconveyor mounted on said framework in position for engaging the brokendown coal and removing it, said breaking down pick and said conveyorperforming their respective functions as the said cutter is advanced toform a kerf.

2-37. In a mining machine the combination with framework comprisingrelatively movable sections, of means mounted on one section for cuttinga horizontal groove in the material to be mined, means mounted on theother section for cutting a vertical groove in said material, andpicking means mounted on said last-named section in post tion to acttransversely of the vertical groove to break down the material above thehorizontal groove and back of the vertical groove.

38. In a mining machine, the combina tion with framework comprising twobase sections each adapted to rest on the floor of a mine chamberadjacent an upright mine wall, of means on the forward section forguiding the rear section along the same path of travel as the forwardsection, cutting mechanism mounted on the forward section, means fordriving said cutting mechanism, means for moving said forward sectionalong the mine wall to effect the feeding of said cutting mechanism,dislodging mech anism mounted on the rear section, means for operatingsaid dislodging mechanism while said rear section remains stationary onthe floor of the mine chamber and the forward section is movingforwardly, and mechanism for moving the rear section along the forwardsection to adjust the said dislodging mechanism to a new position.

39. In a mining machine, the combination with a main frame, of asupplemental frame slidably connected thereto, cutting mechanism carriedby said main frame, means for operating said cutting mechanism,dislodging mechanism carried by said supplemental frame, means foroperating said dislodging mechanism, and rope winding mechanismconnected between said frames for effecting the movement of saidsupplemental frame together with said dislodging mechanism at intervalsalong said main frame toward said cutting mechanism on said main frame.

40. In a mining machine, the combination with a movable frame, of a kerfcutter mounted thereon, means for driving said kerf cutter, means formoving said frame to feed said kerf cutter, a breaking device slidablyconnected to said frame, means for operating said breaking device duringthe feed of said kerf cutter, and means for returning said breakingdevice to its initial position relative to said frame.

-11. In a mining machine, the combination with a frame, of a kerf cuttermounted thereon, means for driving said kerf cutter, means for movingsaid frame to feed said kerf cutter, a rod rigidly connected to saidframe to extend backwardly therefrom, dislodging mechanism mounted onsaid rod and slidable along the same relatively to said frame, means foroperating said breaking device to break down material adjacent the kerfcut by said kerf cutter, and means for moving the breaking device bodilyalong said rod relatively to said frame and toward said kerf cutter torestore the breaking device to an initial position relative to saidframe.

I 42. In apparatus of the character set forth, the combination of aframe adapted to travel along a coal face, cutter mechanism mounted onsaid frame and adapted to cut vertical kerfs in the coal transverse tothe face thereof, a reciprocable coalbreaking device mounted on theframe, means for adjusting said breaking device horizontally andvertically for the purpose of attacking the coal between the planes ofsuch vertical kerfs at different heights as may be required, andmechanism for actuating said breaking device.

43. In a coal mining mechanism adapted to travel continuously along thenormal front face of a coal bed and to form a relatively shallowhorizontal kerf and to remove the coal positioned in the vertical linesby a blow-striking action, the combination of a frame adapted to bemoved continuously along said normal front face, a cutter carried by theframe for forming a single relatively shallow horizontal kerf which iscontinously lengthened while the machine is in operation, and ablow-striking coal-breaking pick movable bodily on lines parallel to thelines of advance of the kerf cutter and arranged to break down the coalin the vertical lines of said kerf and separated from the overlyingmaterial and also separated from its native bed on the innermostvertical lines of the kerf, said pick being adapted to form atransversely advancing face intersecting the planes of the front face byimparting blows in optionally varied directions at points distributedover said transversely advancing face.

41 in a mining machine, the combination with kerf cutting mechanism, offramework for supporting the same, dislodging mechanism mounted on saidframework to follow said cutting mechanism at intervals, means foroperating said dislodging mechanism during the stopping periods thereofand while said kerf cutting mechanism is moving forward, and means formoving the dislodging mechanism forward at intervals alternating withsuch stopping periods.

l5. In a mining machine, the combination with supporting framework, of akerf cutter mounted thereon, means for driving said kerf cutter, meansfor moving a portion of said framework to feed said kerf cutter,dislodging mechanism mounted on another portion of said frameworkadapted to be held stationary during the feed of said kerf cutter, meansfor operating said dislodging mechanism during the stopping periodsthereof and while said kerf cutter is being fed, and means for restoringthe dislodging mechanism to its initial position relative to said kerfcutter at intervals alternating with the stopping periods and after thedislodging mechanism has broken away matetoward said kerf ni sm, asupplemental frame s'lidaibly coning mechanism mounted on saidsupplenected to said first-named frame and adapted to follow the latterat intervals, dislodgmental frame, means for operating said dislodginmechanism during the continuous forward feed of said kerf cuttingmechanism, and means for effectin intermittent forward. movement "ofsaid supplemental frame together with the dislodging mechanism mountedthereon toward said kerf cut ting mechanism for new positions ofdislodging operations.

4-7. In a mining apparatus of the class described, the combination of aframe adapted to be moved while in operation along the normal front faceof a nativecoal bed,

. means engaging said frame to hold it to predetermined lines of travelalong said face,.a horizontal kerf cutter carriedby said frame, and ablowstriking coal-breaking pick movable bodily on lines parallel to-thelines of advance of the kerf cutter and. arranged to break down theunder cut coal and form a transversely advancing face positioned invertical planes intersecting theplanes of the front coal face and tooptionally apply blows in different directions at points distributedover the said transverselyadvancing face.

48. In a mining apparatus ofthe class described, the combination of. aframe adapted to be moved along and close to the front face of a nativecoal bed, means engaging said. frame to hold it to predetermined linesof travel, a horizontal kerf cutter carried by said frame, a tool holdermovable bodily on lines parallel to the lines of advance of the kerfcutter, and a blow-striking coal-breaking pick mounted on said holderand arranged to break down the coal behind the kerf cutter and form achamber with a transversely advancing wall extending vertically from thehorizontal kerf, said pick being adapted to impart blows in optionallyvaried directions at points distributed over said transversely advancingface.

49. In a mining apparatus of the class described, the combination of aframe adapted to be positioned close, and to be moved parallel, to thenormal front face-of a native coal bed, means to hold the frame topredetermined lines while advancing along the face, an inward projectinghorizontal kerf cutter carried by said frame, a tool holder mounted totravel bodily simultaneously with the coal cutter along said front face,a

blow-striking coal-breaking ick mounted on said tool h olderand arrangedto break down the coal behind said cutter and form a chamber with atransversely advancing wall, said pick being arranged tov impart blowstosaid transversely advancing wall at points distributed vertically andhorizontally over its face, and pow'er-actuated feeding means arrangedto exert draft on said frame and the pick mounted thereon.

50. Ina coal mining apparatus adapted to be moved bodily, whileoperating, on

lines close and parallel to the normal front face of a native coal bed,the combination of means for cutting a horizontal kerf in the coal, aconveyer havin its forward lower end positioned relative y behind thekerf cutter to receive broken down coah'a power actuated blow-strikingcoal-breakin picklike tool positioned to extend for operation to breakdown the coal adjacent the receiving end of said conveyer, to form agradually advancing wall with a vertical face in planes intersecting thevertical planes of the normal front faceof the coal, said pick beinginversely adjustable and adapted to strike blows at points distributedover the face of said transversely advancing wall,

means supporting the kerf cutter and-the 95 pick, means connecting theirsupports together, and means for advancing them together bodily alongthe front face of coal.

51. In a machine for undercutting, breaking down and loading coal, thecombination with framework movable in a path substantially parallel to acoal face, of a low-down laterally projecting horizontal kerf cutter onsaid framework for undercutting the coal to be removed, means for,driving said kerf cutter,means for moving said framework to effect feedof said kerf cutter, a blow-striking coal-breaking pick behind said kerfcutter and adjustably spaced therefrom on said framework, and means forremoving the broken down coal, said breaking down and moving meansperforming their respective functions as the kerf cutter isadvanced toform the kerf.

52. In a mining machine, the combination with asupporting frame adaptedto have a rectilinear path of travel, of cutting mechanism mountedthereon and movable bodily therewith, said cutting mechanism extendingfrom one side of said supporting frame in position to act on an uprightmine wall along a path of travel parallel to the path of travel of saidsupporting frame, means path of travel as said first-named frame, meansfor limiting the forward and backward movements of said additional framealong said first-named frame, and restrict ing the relative movements ofsaid additional frame within predetermined limits relatively to saidfirst-named frame, cutting mechanism mounted on said additional frameand'extending from the side thereof above the path of travel ofsaidfirst-named cutting mechanism, means for driving the cutting mechanismon said additional frame, and mechanism for moving said additional frametogether with the cutting mechanism carried thereby forward step bystep.

53. In a mining machine, the combination with supporting framework, ofan undercutting kerf-cutter mounted on the forward portion of saidframework and extending laterally therefrom, an upright kerf-cuttermounted on said framework and extending laterally from said framework tocut a kerf in an upright mine wall above the underkerf, a pick machinemounted on said framework in a positionto act on the cut body ofmaterial above the under-kerf and back of the upright kerf from thefloor to the roof of the mine chamber todislodge the cut body ofmaterial, and loading apparatus extending diagonally across the saidframework toward loading position from a receiving position adjacent thefloor of the mine chamber back of the upright kerf-cutter and below therange of action of said pick machine.

54. In a mining and loading machine, the combination with supportingframework, of

an under-cutting kerf-cutter mounted thereon, a transverse kerf-cuttermounted on said framework in position to cut an upright kerf above theunder-kerf, a pick machine mounted on said framework in position to acton the body of cut material back of the upright kerf and above theunder-kerf up to the roof. of the mine chamber and to the depth of thetransverse kerf, and loading apparatus mounted on said framework andextending toward that side thereof remote from the mine wall from areceiving position adjacent the floor of the mine chamber back of theupright kerf-cutter and below the range of ing a stopping period of saidframework, means for driving said transverse kerf-cutter during suchfeed thereof, means for controlling the starting and stopping of saidframework, means mounted on said framework in position to act on the outbody of material above the under-kerf and back of the transverse kerf todislodge such cut material, andloading apparatus mounted on saidframework and extending toward loading position from a receivingposition back of the transverse kerf and below the range of action ofsaid dislodging means.

56, In a mining and loading machine, the combination with supportingframework, of a single horizontal kerf-cutter mounted on said framework,means for driving said kerfcutter, propelling mechanism for saidframework to secure feed of said horizontal kerf-cutter, a singleupright transverse kerfcutter, means for operatin said transverseXGI'f-Ctlttel' relatively to said framework to cut an upright kerf abovethe under-kerf, a pick machine mounted on said framework in position toact on the cut body of material to dislodge the same above theunder-kerf and back of the upright kerfyand loading apparatus mounted onsaid framework in position to extend toward loading position from areceiving position adjacent the floor of the mine chamber back of theupright kerf and approximately below the range of action of said pickmachine.

57. In a mining and loading machine, the combination with supportingframework, of an undercutting kerf-cutter mounted on said framework, anupright transverse kerf-cutter mounted on said framework, means foroperating said kerf-cutters to cut a body of material remaining integralwith the unmined mass at its upper and rear ends, a pick machin mountedon said framework in position to dislodge such cut body of ma terialfrom said unmined mass up to the roof of the mine chamber and back tothe depth of the upright kerf, and loading apparatus mounted on saidframework in position to automatically receive the dislodged materialand convey it toward loading position.

58. In a mining and loading machine, the combination with supportingframework, of an undercutting kerf-cutter extending laterally from saidframework in position to cut a kerf approximately in the plane of thefloor of the mine chamber, an upright transverse kerf-cutter mounted onsaid framework in position to cut a kerf above the underkerf, means foroperating said kerf-cutters to cause the first-kerf-cutter to cut a kerfin advance of the transverse kerfs, and to cause the transverse kerfs tobe cut at intervals in spaced-apart positions along the mine wall, apick machine; mounted on said framework in position to dislodge thematerial above the undenkerf and back of the upright transverse kerf upto the roof of the mine chamber and to the depth of said upright kerf,endless flight conveyer mechanism mounted on said framework in aposition toextend toward an elevated loading position from a receivingposition adjacent the floor of the mine chamber, and a device mounted onsaid framework in position to move over the smooth floor formed by saidunder-kerf-cutter and move the dislodged material into the receiving endof said endless conveyer mechanism from the place where it falls uponbeing dislodged by said pick machine.

59. In a coal mining machine, the combination with supporting frameworkcomprising two sections relatively movable but confined to predeterminedrelative limiting positions, of a cutting tool mounted on one of saidsections and movable bodily therewith, dislodging mechanism mounted onthe other section and movable bodily therewith, means for operating saidcutting tool including the continuous forward feed thereof,and means forcontrolling the forward movements of the said other section relativelyto the forward section to secure stoppingperiods at intervals foroperation of said dislodging mechanism.

60. In a coal mining machine, the combination with supporting framework,comprising two sections having limited relative movement but permanentlyconnected together in fixed relation with the relative limitingpositions predetermined, of 'kerfcutting mechanism mounted on theforward section and movable bodily therewith, means for operating saidkerf-cutting mechanism including feed thereof by continuous forwardmovement of said forward section, dislodging mechanism on the rearsection, means for moving the rear section forward relatively to theforward section, said rear section having stopping periods at intervalswhile said forward section continues its forward movement, and means foroperating the dislodging mechanism during the stopping periods. I

61. In a miningmachine, the combination with supporting framework, of a.cutter mounted on said framework in position to under-cut a body ofcoal, a second cutter mounted on said framework in position to out suchbody of coal transversely of the plane of the undercut and transverselyof the face of the mine wall, said second cutter being initially out ofengagement with the coal, means for operating said cutters including thefeed of each, and means for moving the said framework along the mine'wall'to effect the feed of the under-cutter and to move the transversecutter to newpositions at intervals along the mine wall.

4. A machine for under-cutting, break ing-down andloading coal, thecombination with framework movable along a path substantially parallelto a coal face, of a laterally projecting horizontal kerf-cutter on theframework to cut an under-kerf the bottom of which is approximately inthe plane of the floor of the. mine chamber, means for moving saidframework along a predetermined path, a pick machine behind said cutteron said framework acting by percussive blows to break down the coal atthe mine wall above said under-kerf, and loading apparatus extendingtoward an elevated loading position from a receiving position on saidframework adjacent the plane of the under-kerf back of the under-cuttingkerfcutter and below the range of actionv of said breaking-down means.

63. In a mining mechanism adapted to travel continuously along thenormal front face of a coal bed and to form a relatively shallowhorizontal kerf which extends on longitudinal lines inward from thefront face and on transverse lines along said face and to also form achamber which widens vertically from the horizontal kerf and isgradually elongated transversely along the face and has at its forwardend a trans versely advancing vertical wall in planes intersecting thewalls of the normal front face of the coal, the combination of a framemovable continuously along said normal front face, an inward projectinghorizontal rerf cutter carried by the frame, a tool holder carried bysaid frame, a blow-striking coal-breaking pick mounted on said holderand adjustable as set forth to impart blows to the coal at optionallyselected points distributed vertically and longitudinally over the saidtransversely advancing longitudinal face.

64C. in a mining mechanism adapted to tavel continuously along the frontface of a coal bed and form a single relatively shallow horizontal kerfand to dislodge the coal remaining in the vertical lines of said l-rerfand form parallel to the face a gradually elongating transverse chamberby inter mitting coal dislodging blows which sepa- 'ate the undercutcoal by cleavage from the overlying material and by cleavage separateitfrom the solid mass beyond it, t 1e combination of a. frame, means formoving it along said normal front face, a cutting meclr anism carried bythe frame which forms a single relatively shallow horizontal kerf, ablow-striking coal-breaking pick arranged to impart blows to the coaland form behind the kerf cutter a chamber with a gradually advancingforward wall and to break the coal above the kerf from the solidmaterial above it and also break it from the solid native coal behindit, said coal breaking pick Home and adjustable and operable indeocndentof the kerf cutter, a bearin ad- L D stable on said frame and havingmeans i the sliding of said breaking mec iism for actuating the latter,and a conveyer on the frame for on gaging and removing the broken-downcoal. 66. The combination in a coal cutting and breakingdown machine, ofa main frame adapted to be moved parallel with a coal face, a kertcutter mounted on said frame 'ng kerfs in the coal at an angle to thefront face thereof in different places along the face of the coalaccording to the g'iosition of the machine, a reciprocable breaking downdevice mounted on said main frame and adjustrl'ile and operableindependent of the kerf cutter, a bearing for supporting and guiding thebreaking-down device, said bearing being adjustable on said frame toshift the axis of the breaking-down device in vertical and in horizontalplanes, and mechanism for actuating the breakingdown device.

(37. 'ilhe combination in a coal cutting and lu'eal-dng-doivn machine,of a main frame adapted to be moved parallel with a coal face, a kerfcutter mounted on said frame for cutting a he f in the coal at an angleto the front face thereof, a reciprocable breaking-down device mountedon said main frame above said kerf cutter and adjustable and ope ableindependent of the kerf cutter, a bearing adjustable on said frame andhaving means for guicing the sliding of said breaking-down devi e,mechanism for actuating the la ter, and a conveyor on the frame forengaging and removing the broken-down coal.

68. The combination in a coal. cutting and breaking down machine, of amain frame adapted to be moved parallel with a coal face, a kerf cuttermounted on said frame for cutting kerfs in the coal at an angle to thedirection of movement of said frame in different places along the faceof the coal according to the position of the machine, a reciprocablebreaking down device mounted on a universal pivotal support, and asupport for said pivotal support on said main frame and adjustablerelative to said kerf cutter.

69. In apparatus of the character set between such planes at variousheights as may be required.

70. In a mining and loading machine, the combination with a frame, ofcore-cutting mechanism connected thereto, means for operating saidcore-cutting mechanism includfeeding movement thereof, a conveyerconnected to said frame in position to receive dislodged material andcapable of operating in initial position at the floor of the minechamber, and means for moving the conveyor along the feeding path oftravel of said core-cutting mechanism.

71. The combination of a main frame movable along a coal face, ahorizontally projecting cutter to undercut the coal, a receiving plateoccupying a position in the plane of the kerf beneath the undercut coal,a conveyor extending from said receiving plate away from the coal faceand mounted on said frame to follow the lines of travel of saidundercutter, motor and power mechanism on said frame in advance of saidconveyor, and means for breaking down the -oal adapted to attack thecoal above the conveyor and on vertical planes at an angle to the frontface of the coal.

72. The combination of a main frame movable laterally along a coal face,cutting apparatus projecting from said frame in position to undercut thecoal, means on said frame outside the bounding lines of the coal facefor moving the frame and cutting apparatus along the face of the coal,and a coal-breaking pick carried by said frame and arranged to impartblows on the coal on upright planes approximately at right angles to thefront face of the coal.

78. The combination of a main frame movable laterally along a coal'face, cutting apparatus projecting from said frame and comprising meansto undercut the coal, means on the frame outside the boundary lines ofthe coal face for moving t e frame and the undercutting means along theface of the coal, an extension from said frame to a receiving positionin the plane of the undercut, an endless conveyor mounted on said frameand movable bodily therewith, means for operating said conveyor totransfer dislodged material from said receiving extension toward loadingposition, and a coalbreaking pick carried by said frame and adapted toform a free face on the coal inside of and at an angle to its normalfront face and said pick being arranged to impart blows to such a freeface while bodily advancing with the cutting apparatus.

74. In a machine of the character described, the combination with aframe, of means movable relatively thereto for cutting a horizontal kerfin the material to be mined, means for cutting a vertical lrerf, andpicking means operating from the ma chine and acting transversely to thevertical kerf for breaking down the material.

75. In a mining machine, the combination with a traveling base member,of a horizontal' rotary cutter, a vertical rotary cutter, and pickingmeans acting transversely to said vertical cutter for breaking down thematerial.

76. A mining and loading machine comprising a supporting frame,kerf-cutting mechanism mounted thereon, means independent of themovement of said frame for dislodging the material adjacent the kerfsproduced by said kerf-cutting mechanism, and mechanism mounted on saidframe for automatically sliding the dislodged material over the floor ofthe mine toward loading position.

77. In a mining and loading machine, the combination with mechanism fordislodging material from a mine wall comprising means for producing anunder kerf, of a frame for supporting said dislodging mechanism, loadingapparatus connected to said frame, and a device mounted on said frame inspacedapart relation to said dislodging mechanism in position to extendfrom said frame toward the mine wall to operate in the plane of theunder kerf for moving dislodged material onto said loading apparatusfrom the position assumed by said material after being dislodged.

78. In a mining and loading machine, the combination with supportingframework, of mechanism mounted thereon for producing kerfs inintersecting planes in a mine wall, means mounted on said framework andextending rearwardly therefrom for breaking down. the material boundedby said kerfs,

and apparatus comprising an endless traveling conveyer for automaticallytaking the dislodged material from the floor of the mine chamber andtransferring it toward loading position.

79. A mining and loading machine comprising a supporting frame, ofmechanism mounted thereon for producing kerfs in intersecting planes ina mine wall, means for dislodging material bound by said kerfs,aconveyor mounted on said frame and extend ing to a receiving positionnear the floor of the mine chamber, and automatic means for taking thedislodged material from the floor of the mine chamber and moving it ontosaid conveyer.

80, A mining and loading machine com prising a supporting frame,kerf-Cutting mechanism mounted thereon, a pick machine mounted on saidframe for breaking the cut material to dislodge the same onto the floorof a mine chamber adjacent said frame, a conveyer mounted on said frame,and means mounted on said frame for mechanically transferring onto saidconveyer the said ma terial on the floor.

81. A mining and loading machine comprising a supporting frame,kerf-cutting mechanism mounted thereon, means mounted on said frame nearsaid kerf-cutting mechanism for dislodging the material adjacent thekerfs produced by said kerfcutting mechanism, a conveyor mounted on saidframe and extending to a. receiving position near the floor of the minechamber and adjacent said f aims, and means on said frame forautomatically transferring the dislodged material from the floor ontosaid conveyer.

82. A mini and loading machine comprising a supporting frame,kerf-cutting mechanism thereon, a pick machine mounted on said framenear said kerfarutting mechanism to break down the cut material onto thefloor adjacent said frame, and loading apparatus mounted on said framefor taking the broken down material off the floor and moving it towardloading position.

83. A mining and loading machine comprising a supporting frame,kerf-cutting mechanism mounted thereon, means independent of themovement of said frame for dislodging the material adjacent the kerfsproduced by said kerf-cutting mechanism, and mechanism mounted on saidframe for automatically sliding the dislodged material over the floor ofthe mine along the mine wall toward loading position.

84. A mining and loading machine comprising a supporting frame,kerf-cutting mechanism mounted thereon, mechanism mounted on said framenear said kerf-cutting mechanism to dislodge the cut material onto thefloor of the mine chamber adjacent said frame, a conveyor on said frameextending to a receiving position substantially at the floor of the minechamber, and means mounted on said frame for sweeping the dislodgedmaterial from the floor onto said conveyer.

85. A mining and loading machine comprising a frame, kerf-cut-tingmechanism mounted on said frame, means for moving said frame and saidcutting mechanism bodily to effect feeding of said cutting mechanism,means for actuating said cutting mechanism during the forward feed ofthe latter, breaking mechanism connected to said frame and movablebodily therewith during the forward feed thereof to act on the materialextending back from said cutting mechanism, mechanism for effectingintermittent operation of Said breaking mechanism auto-

